Manufacturer:

Rab Ultrasphere 1.5

£140.00 inc. VAT
£124.36 inc. VAT
SKU: 102891
The Rab Ultrasphere 1.5 is an ultra-lightweight (310g) inflatable sleeping mat built for fast & light mountain missions. Featuring innovative offset air chambers and an R-value of 1.4, it delivers efficient summer warmth without added bulk. The tapered mummy shape and compact pack size make it ideal for thru-hiking, bike-packing and multi-day runs. An 8cm thickness ensures reliable comfort at minimal weight.

Size: Reg

Colour: Dark Pweter

Gender: N/A

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Availability: Out of stock

The Rab Ultrasphere 1.5 is an ultra-lightweight inflatable sleeping mat engineered for fast-moving mountain missions where weight and pack volume are critical. At just 310g (Regular), it is purpose-built for thru-hiking, summer bikepacking and multi-day mountain runs. Its innovative offset air chamber construction traps heat within the mat structure, improving thermal efficiency without adding bulky insulation. The tapered mummy profile minimises excess material, while the 8cm thickness delivers stable cushioning and ground separation. Constructed with soft 20D ultralight fabric and a low-profile two-way valve, it balances minimalism with practical usability.

Features:
Ultra-lightweight (only 310g)
Innovative offset air chambers improve heat retention
1.4 R-value is ideal for summer and fast & light use
8cm thickness for comfort and support
Tapered mummy shape reduces bulk
Soft 20D ultralight fabric
Compact pack size
Two-way valve for rapid inflation and deflation
Inflation sack included

Specifications:
Weight: 310g / 10.9oz
Shape: Tapered Mummy
Thickness: 8cm
R-Value: 1.4
Dimensions (regular): 183cm x 51cm x 8cm
Packed Size (regular): 15cm x 9cm 

Long Wide:
Dimensions: 196cm x 64cm x 8cm
Packed Size: 19cm x 7.5cm

Activities: Fast & Light Adventures, Trekking, Mountaineering

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The Rab Ultrasphere 1.5 is an ultra-lightweight inflatable sleeping mat engineered for fast-moving mountain missions where weight and pack volume are critical. At just 310g (Regular), it is purpose-built for thru-hiking, summer bikepacking and multi-day mountain runs. Its innovative offset air chamber construction traps heat within the mat structure, improving thermal efficiency without adding bulky insulation. The tapered mummy profile minimises excess material, while the 8cm thickness delivers stable cushioning and ground separation. Constructed with soft 20D ultralight fabric and a low-profile two-way valve, it balances minimalism with practical usability.

Features:
Ultra-lightweight (only 310g)
Innovative offset air chambers improve heat retention
1.4 R-value is ideal for summer and fast & light use
8cm thickness for comfort and support
Tapered mummy shape reduces bulk
Soft 20D ultralight fabric
Compact pack size
Two-way valve for rapid inflation and deflation
Inflation sack included

Specifications:
Weight: 310g / 10.9oz
Shape: Tapered Mummy
Thickness: 8cm
R-Value: 1.4
Dimensions (regular): 183cm x 51cm x 8cm
Packed Size (regular): 15cm x 9cm 

Long Wide:
Dimensions: 196cm x 64cm x 8cm
Packed Size: 19cm x 7.5cm

Activities: Fast & Light Adventures, Trekking, Mountaineering

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